| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Canada | 2 | |
| #3 | United States | 2 | |
| #4 | Germany | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Clutches and brakes | |
| #3 | Weighing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carlo Sampietro Achille | 2 |
| #2 | Sampietro Achille Carlo | 2 |
| #3 | Carlo Achille | 2 |
| #4 | Sampietro Achilles Charles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2583124A | Rotary annular electromagnet | |
| US2622216A | Cooling means for clutches and brakes | |
| GB630533A | Improvements in clutches for conveying or preventing rotary motion | |
| CA504017A | Cooling means for clutches and brakes | |
| CA482733A | Clutches |